Public bug reported:

[Impact]
The issue arises from the installation of the udev rules file 
/lib/udev/rules.d/68-del-part-nodes.rules by kpartx.
This file references /usr/sbin/partx, but on Debian, partx is located in 
/usr/bin.
This incorrect path leads to the following error:
systemd-udevd[3302364]: sdrg: Process '/usr/sbin/partx -d --nr 1-1024 
/dev/sdrg' failed with exit code 1.

[Fix]
The upstream has a patched fix available.
https://salsa.debian.org/linux-blocks-team/multipath-tools/-/blob/master/debian/patches/0003-kpartx-rules-use-Debian-specific-partx-path.patch?ref_type=heads

[Test Plan]
1. Verify the udev file located at /lib/udev/rules.d/68-del-part-nodes.rules.
2. Ensure that the path for partx matches the output of the "which partx" 
command.

[Where problems could occur]
The patch specifically targets a single udev rule responsible for deleting 
partition devnodes for slave devices associated with specific aggregate 
devices, like multipath. This modification solely adjusts the path of the partx 
command. If the path is incorrect, the devnode will persist.

** Affects: multipath-tools (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: multipath-tools (Ubuntu Bionic)
     Importance: Undecided
         Status: New

** Affects: multipath-tools (Ubuntu Focal)
     Importance: Undecided
         Status: New

** Also affects: multipath-tools (Ubuntu Bionic)
   Importance: Undecided
       Status: New

** Also affects: multipath-tools (Ubuntu Focal)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2064201

Title:
  Use Debian-specific partx path in kpartx rule

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